<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
COMPANY'S BALANCE SHEET AND STATEMENT OF INCOME FOR THE SIX MONTHS
ENDED JUNE 30, 1999 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO
SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               JUN-30-1999
<CASH>                                          13,725
<SECURITIES>                                    14,103
<RECEIVABLES>                                  374,790
<ALLOWANCES>                                     5,442
<INVENTORY>                                    206,009
<CURRENT-ASSETS>                               626,765
<PP&E>                                       1,575,629
<DEPRECIATION>                                 675,334
<TOTAL-ASSETS>                               1,621,708
<CURRENT-LIABILITIES>                          218,383
<BONDS>                                        205,180
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        75,846
<OTHER-SE>                                     842,127
<TOTAL-LIABILITY-AND-EQUITY>                 1,621,708
<SALES>                                        963,239
<TOTAL-REVENUES>                               964,388
<CGS>                                          781,780
<TOTAL-COSTS>                                  781,780
<OTHER-EXPENSES>                                65,354
<LOSS-PROVISION>                                   534
<INTEREST-EXPENSE>                               7,499
<INCOME-PRETAX>                                109,221
<INCOME-TAX>                                    39,874
<INCOME-CONTINUING>                             69,347
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    69,347
<EPS-BASIC>                                      .91
<EPS-DILUTED>                                      .91